Orlando International Airport (MCO)

In case nearby Walt Disney World and Universal Studios aren't enough to excite your little travelers, there's plenty of fun to be had at the airport. The main terminal's food court features both the "King of Kong" arcade and a 3,000-gallon saltwater fish tank filled with some 100 aquatic specimens. There's also a piece of an actual asteroid from Mars in the Kennedy Space Center store that kids can touch, and MCO is home to Build-a-Bear's first-ever airport location.